its can be a restriction in liquide line
I am not sure if they are proportional, but they are inversely related. High pressure makes a low vacuum, and low pressure makes a high vacuum.
Low pressure
The ultimate objective of a manufactured vacuum is zero pressure.The better the vacuum, the closer the pressure is to zero.
The atmospheric pressure on the moon is nearly zero (effectively vacuum).
High Vacuum was created in 1957.
oil gage pressure immediately goes high
High Vacuum has 192 pages.
On a manifold gauge set, there are two gauges. The gauge encased in red measures pressure on the high pressure (discharge) side. That's the "high side gauge". The other will be incased in blue, and measures vacuum pressure on the low side.
High pressure. A hot air balloon has a maximum altitude, where it has only just enough lift to keep it there, because there is very little difference in density between hot (near) vacuum and cold (near) vacuum.
A high pressure systems has a high pressure center.
R134a goes into the low pressure port
In a vacuum system, the division points between high-pressure supply piping and lower-pressure return piping typically occur at the inlet and outlet of the vacuum pump. The inlet side, where the high-pressure gas enters, is connected to the supply piping, while the outlet side, where the gas is expelled after being evacuated, connects to the return piping. Proper sealing and valve configurations are essential at these division points to maintain the required pressure differentials and system efficiency.